Home / 389,897.19-584,918.82-123,586.20

Finding the Fourth Proportional to 389,897.19, 584,918.82 and 123,586.20

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Solution

The fourth proportional to 389,897.19, 584,918.82 and 123,586.20 is: 185,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,897.19 : 584,918.82 = 123,586.20 : x
  2. Step 2: Convert to fraction form
    389,897.19/584,918.82 = 123,586.20/x
  3. Step 3: Cross multiply
    389,897.19x = 584,918.82 × 123,586.20
  4. Step 4: Simplify right side
    389,897.19x = 72,287,894,272.28
  5. Step 5: Solve for x
    x = 72,287,894,272.28/389,897.19
  6. Step 6: Final answer
    x = 185,402.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.